'Brothers' in the Bible

Then Abner called to Joab, and said, "Shall the sword devour forever? Don't you know that it will be bitterness in the latter end? How long shall it be then, before you ask the people to return from following their brothers?"

Then was Abner very angry for the words of Ishbosheth, and said, "Am I a dog's head that belongs to Judah? Today I show kindness to the house of Saul your father, to his brothers, and to his friends, and have not delivered you into the hand of David; and yet you charge me this day with a fault concerning this woman!

Whereas you came but yesterday, should I this day make you go up and down with us, since I go where I may? Return, and take back your brothers. Mercy and truth be with you."

You are my brothers, you are my bone and my flesh. Why then are you the last to bring back the king?'

Behold, all the men of Israel came to the king, and said to the king, "Why have our brothers the men of Judah stolen you away, and brought the king, and his household, over the Jordan, and all David's men with him?"